MC68EN302PV20BT

The MC68EN302PV20BT is an NXP Semiconductors microprocessor based on the M68000 core, delivering a 20 MHz, 8/16-bit single-core architecture in a 144-LQFP (20×20 mm) surface-mount package. It integrates communications-focused peripherals, an Ethernet controller and a DRAM controller, making it well suited for embedded systems that require on-chip networking and memory control.

Designed for embedded and communications applications, the device offers a combination of integrated interfaces and on-chip resources to reduce external components and simplify system design while operating from a 5 V I/O domain and an ambient range of 0 °C to 70 °C.

Key Features

• Core and Architecture M68000 microcoded communications core, single core with 8/16-bit bus width running at 20 MHz for deterministic embedded processing.
• Integrated Ethernet Controller On-chip Ethernet channel compatible with IEEE 802.3, supporting up to 10 Mbps operation (and up to 20 Mbps full-duplex as documented in the device family), with separate transmit and receive DMA channels and 128-byte FIFOs for each data path.
• DRAM Controller Integrated DRAM controller with support for parity and external bus masters, enabling direct memory interfacing and reduced external glue logic.
• Communications and DMA Communications-oriented peripherals including multiple serial communications channels (SCCs), dedicated DMA channels for Ethernet and peripheral transfers, and on-chip buffer descriptors to lower processor bus bandwidth requirements.
• On-chip Memory and Peripherals Dual-port RAM and on-chip descriptor memory for efficient buffer handling; includes timers, interrupt controller and a microcoded communications RISC.
• System and Test IEEE 1149.1 JTAG compliance for boundary-scan test and debug support.
• Package, Power and Environment 144-LQFP (20×20 mm) surface-mount package, I/O at 5 V, and specified operating temperature range of 0 °C to 70 °C. RoHS compliant.
• Additional Interfaces Includes GCI interface and support for dynamic bus sizing for 8-bit devices.

Typical Applications

• Embedded Networking and Communications — On-chip Ethernet, DMA and SCCs make the device suitable for embedded network interface modules and communications controllers.
• Protocol Gateways and Bridges — Integrated buffer descriptors, dual-port RAM and dedicated DMA channels support protocol translation and bridge applications with efficient data movement.
• DRAM-Based Embedded Systems — Built-in DRAM controller with parity support enables compact systems that require external dynamic memory without extensive external control logic.
• Industrial and Commercial Control — Deterministic 20 MHz M68000 core with integrated peripherals is applicable to control and monitoring systems that combine communication and I/O tasks.

Unique Advantages

• Integrated Ethernet and Memory Controllers: Reduces bill-of-materials and simplifies board design by combining IEEE 802.3–compatible Ethernet and a DRAM controller on-chip.
• Communications-Focused Architecture: M68000 core plus microcoded communications RISC and multiple SCCs target protocol and data-path processing without extensive external devices.
• Dedicated DMA and Buffering: Separate Ethernet DMA channels and on-chip FIFOs minimize CPU intervention for transmit/receive paths, improving data throughput efficiency.
• Test and Debug Support: IEEE 1149.1 JTAG compliance streamlines boundary-scan testing and development diagnostics.
• Documented and Supported by Manufacturer: Full product documentation is available from NXP Semiconductors to support integration and development.
• RoHS Compliant: Meets environmental compliance requirements for lead-free manufacturing processes.

Why Choose MC68EN302PV20BT?

The MC68EN302PV20BT positions itself as a compact, integrated solution for embedded designs that require an M68000-class processor with built-in Ethernet and DRAM control. Its combination of communications peripherals, dedicated DMA channels and on-chip buffering helps simplify system architecture and reduce external component count.

This part is ideal for designers building embedded networking, protocol gateway or DRAM-backed control systems who value integration, clear vendor documentation and straightforward board-level integration in a 144-LQFP surface-mount package.

Request a quote or submit an inquiry to receive pricing and availability information for the MC68EN302PV20BT and to discuss how it fits your next embedded design.